USA+Jose+David+Bustillo

=**United States of America By: Jose David Bustillo**=

United States of America is a very big country located in the continent of North America. North America is popularly known for its very good amount of natural resources, democracy and freedom. Usa's area: 9,826,675 km squared ; 3,794,101 sq mi.

MAP: [[image:USA.jpg]]
314,686,189 (2012)
 * POPULATION **:

13.68 births/1,000 population (2012 est.)
 * BIRTH RATE **:

8.39 deaths/1,000 population (July 2012 est.)
 * DEATH RATE: **

3.62 migrant(s)/1,000 population (2012 est.)
 * NET MIGRATION RATE: **

5.98 deaths/1,000 live births
 * INFANT MORTALITY RATE: **
 * male:** 6.64 deaths/1,000 live births
 * female:** 5.3 deaths/1,000 live births (2012 est.)

0.899% (2012 est.)
 * POPULATION GROWTH RATE: **

78.49 years (2012 est.) 66.1 to 81.6 years for men and 73.5 to 86 for women
 * LIFE EXPECTANCY: **

To find the doubling time of a population at any given annual rate of growth, divide 72 by the annual percentage growth rate. D=72 P=1.1 Then D/P = About 65 years D= Doubling time and P= annual percentage growth rate.
 * DOUBLING TIME: **

The population is the way it is because of the high birth rate and low death rate the population always increases, and since USA is very big there is a big population. Due to the lack of usage of safety in USA, the birth rate is high causing a lot of babies being born per 1000 people. The death rate is the way it is because there are a lot of diseases and people die. Men live less then women because they get more involved in dangerous activities. Some people do not like their country and they migrate to a place where they believe they will have a better life, that is why USA has a 3.62 net migration rate. Many babies are not born perfectly healthy and some are but catch diseases and that causes them to die before reaching age 6. This occurs because of natures way or a disease the baby caught. The population growth rate is 0.899% because of the addition of birth and death rate give us that population growth rate. Life expectancy is higher for women than for men because men get involved in more dangerous activities and that can cause them to die younger then females. The doubling time for USA is that in about 65 years the population will have doubled in size since many people die and are born, then the growth rate is small so it would take time to double in size.
 * Explanation of All Previous Data: **

The USA is in Stage 4 of the Transition Model because of its birth rates and death rates are relatively low but the population is still increasing. Usa is a MEDC. It is one of the richest and most industrialized countries in the world.

Most people believe that population issues are mostly created in Asia, Africa, South America, etc, but recent information have shown that 275 million americans make a bigger impact on the environment than 1.25 billion asians or 1 billion indians, and despite living in one of the richest and most industrialized countries in the world american citizens are suffering many of the impacts on population as in other regions around the globe.



http://alliance.la.asu.edu/geomath/GeoMath3/lesson_files/Glenn/CROWDED/GlennChipsHfootprintUS.pdf []
 * REFERENCES: **

By: Jose David Bustillo